Actuating means for fountain-rolls for printing-presses.



G. J. WRIGHT.

AGTUATING MEANS FOR FOUNTAIN ROLLS FOR PRINTING PRESSES.

APPIJICATION FILED 00T.22,1912.

1,1 21 ,705. Patented Dec. 22, 1914.

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G. J. WRIGHT AGTUATING MEANS FOR FOUNTAIN ROLLS FOR PRINTING PRESSES.

APPLICATION FILED OUT.22, 1912. 1, 1 21,7G5, Patented Dec. 22, 1914.

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CAI/7% WHM-meo IIIQTTED STATE PATENT @FFIQE.

CHARLES J. VRIGHT, OF NILES, OHIO, ASSIGNOR TO THE HARRIS AUTOMATIC PRESS COMPANY, OF NILES, OHIO, A. CORPORATION OF OHIO.

Specification of Letters Patent.

Patented Dec. 22, 1914.

Application filed October 22, 1912. Serial No. 727,098.

To all whom it may concern:

Be it known that I, CHARLES J. WRIGHT, of Niles, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Actuating Means for Fountain-Rolls for Printing Presses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The primary object of this invention is to provide means for use in connection with a printing press or other machine, for regulating the extent of operation of a shaft or roll, such as the distributing roll of a printing press, without changing the operation of the prime mover, the change or regulation in the operation being capable of accomplishment without the necessity of stopping the machine.

In the accompanying drawings, Figure 1 is a plan view showing my improvements. Fig. 2 is an elevation. Figs. 3, 4 and 5 are diagrammatic views.

Referring to the drawings, 1 designates a side member of a press frame, a portion only of which is shown; 2 an ink fountain; 3 a rotary member or shaft which, in the present instance, is the ink fountain roll; 4 the ournal for roll 3; and 5 a pawl carried by an arm 6 loose on journal 4:, said pawl engaging a ratchet 7 for imparting a step by step rotary movement to the member 3, by reciprocating the arm 6. The extent of reciprocationcontrols the extent of rotation of the member 3. The outer end of arm 6 is connected by a link 8 to the pivot pin 10 of a crank arm 11 fast on one end of a shaft 12, which latter at its other end carries a gear wheel 13. The crank shaft 12 is capale of being bodily moved and while being so moved is rotated on its own axis. It has its bearing in a reciprocating carrier which is shown in the form of a frame 14: which is hung on a stud 15 mounted in frame member 1, and extended on opposite sides thereof. The frame 1st is of approximately U- shape, that is to say, it has two corresponding parallel members, at right angles to the bearing for shaft 12, and both members are loosely mounted on stud 15 on opposite sides of the frame member 1. From one of the members of the shaft-carrying frame 14 extends an arm 14, which is shown as connected by a link 16 to a crank 17 on a constantly operating shaft 18, which latter is the actuating agency for operating the device. Theshaft 18 may be caused to make any desired number of revolutions in each cycle of operation of the press, but preferably it has the same face speed as the impression cylinder. The crank 17 will, through the link 16, impart an oscillatory motion to frame 14, swinging it on stud 15, and through crank 11 and link 8 the pawlcarrying arm 6 will be reciprocated to effect the intermittent rotation of the member 3.

According to my invention, as the shaftcarrying frame 14 is swung. upward, the shaft is given a partial revolution on its own axis, and this is effected, according to the means shown, by gear wheel 13 meshing with a fixed gear wheel 19 mounted on stud 15. In consequence, the path of the movement of pivot pin 10 is a true curve, as shown by the line F, Fig. 2.

By altering the position of crank 11 relatively to the shaft-carrying frame 14, a variable throw may be given link 8, and hence also the pawl-carrying arm, although the revolutions of the actuating agency are unaltered. The fixed gear wheel 19 has a segmental worm gear 19 at one side thereof, with which meshes a worm 20 whose shaft 21 is mounted in fixed bearings on the press frame, and provided with an operating hand wheel 22. By turning this shaft 21 in a direction to move the worm segment 19 downward, or counter-clockwise, shaft 12 will be turned to change the position of the connecting link pivot pin 10 relatively to carrying frame 1a. Hence the extent of the throw of the pawl-carrying arm is regulated by the position of the connecting pivot pin 10. The result capable of being brought about in the manner stated will be readily understood by the two connecting curved lines shown in Fig. 2, as well as the diagrammatic views, Figs. 4 and 5. Let it be assumed that the segment worm gear, together with the gear wheel 19, has been turned until the pivot pin 10 was placed at the point Gr, Fig. 2. The double reverse curve, indicated by dot and dash line H, shows the peculiar movement that the connecting rod pivot pin will assume in' moving the pawl-carrying arm. The two lines J and K, Figs. 2, 4 and 5, show the I prlnting.

amount of travel of the pawl-carrying arm when the connecting pivot pin has been moved to the point G. Of course, the adjustment of the pivot pin may be at any point intermediate the extremes shown by the diagrams. The maximum range of movement is indicated in Fig. 3, while Figs. at and 5 indicate approximately the mini' mum range of movement. It will be understood that under all conditions the operation of the actuating agency remains unaltered, but by merely turning the wormshaft the extent of the throw of'the pawlcarrying arm may be regulated without the necessity of stopping the machine.

Although I have described my present improvement in connection with an ink fountain, it is manifest that the same may be employed for dampening or moistening stock, as, for instance, in lithograph or off-set In fact, the mechanism may be employed wherever it is desired to control or adjust, without interfering with the operation of the machine, the range of movement of a part actuated by an actuating agency having a uniform motion. It will also be understood that I do not restrict myself to the exact means shown and described.

I claim as my invention:

1. The combination with a shaft, and means for rotating said shaft, of an actuating agency, a rotating member for actuating the shaft operating means, a reciprocating carrier for said rotating member, said carrier being actuated by said actuating agency, and stationary means for changing the position of said rotating member relatively to its carrier while the parts are in operation.

2. The combination with an actuating agency, of an oscillating member connected thereto, a movable crank carried by said oscillating member, means for rotating said crank while traveling with said member, an element designed to be operated by said crank, and stationary means for adjusting the relative positions of the crank and the oscillating member, while the parts are in operation, to increase or decrease the travel of said element.

3. The combination with an actuating agency, of an oscillating lever connected thereto, a rotary crank carried by said lever, a reciprocating element actuated by said crank, and manually operable means for r0- tating the crank to adjust the position thereof relatively to the lever while the parts are in operation. I

4:. The combination with a shaft, and means for rotating such shaft, comprising a reciprocating link, of an actuating agency, a crank to which said link is connected, a pivoted carrier for said crankto which said actuating agency is connected, means for rotating the crank relatively to the carrier in each operation of the latter, and means for relatively adjusting the crank and its carrier 6. The combination with a shaft, and

means for rotating such shaft, comprising a reciprocating link, of an actuating agency, a crank to which said link is connected, a carrier for said crank to which'said actuating agency is connected, means for rotating the crank relatively to the carrier while traveling therewith, and stationary means for adjustingthe crank relatively to its rotating means.

7. The combination I with a shaft, and means for rotating such shaft, comprising a reciprocating link, of an actuating shaft, a crank-shaft to which said link is connected, a carrier for said crank-shaft to which said actuating agency is connected, a gear-wheel on said crank-shaft, a fixedly-held gear with which said gear-wheel engages and around which it revolves as said carrier is actuated, and means for adjusting the crank shaft and its gear while theparts are in operation.

8. The combination with a shaft, and means for rotating such shaft, comprising a reciprocating link, of an actuating agency, v

a crank-shaft to which said link is connected, a carrier for said crank-shaft to which said actuating agency is connected, a gear-wheel on said crank-shaft, a fixedly-held gear with which said gear-wheel engages and around which it revolves as said carrier is actuated,

and means for adjusting said fixedly-held gear, and through it and said gear-Wheel the crank-shaft, relatively to said carrier.

9. The combination with a shaft, and

reciprocating link, of an actuating agency, a

a crank-shaft to which said link is connected, a carrier for said crank-shaft to which said actuatingagency is. connected, a gear-wheel on said crank-shaft, a fixedly held gear with which said gear-wheel enspecification in the presence of two subscrib gages and around whlch 1t revolves as sald lng wltnesses. carrler 1s actuated, a worm-gear carrymg said fixedly-held gear, a worm in mesh with CHARLES WRIGHT 5 said wormgear, and a manually controlled WVitnesses:

shaft carrying said wor A. D, LOOP,

In testimony whereof, I have signed this 0. G. PRITOHARD.

Copies of this'patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

